方 法 1: Dim adoConnectionX As New ADODB.Connection Dim adoSchemaRecordsetX As New ADODB.Recordset 'Ms SQL 7: 'adoConnectionX.Open "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Data Source=yuer;DataBase=NorthwindCS" 'Access 2000: adoConnectionX.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\DRptPlus\DRptPlus\Data\NWind2K.mdb;Persist Security Info=False"
Dim TestTableName As String TestTableName = "产 品 "
Set adoSchemaRecordsetX = adoConnectionX.OpenSchema(adSchemaTables, Array(Empty, Empty, TestTableName, "Table"))
If Not adoSchemaRecordsetX.EOF Then MsgBox "[" & TestTableName & "]表 已 存 在 !" End If
方 法 2(引 用 Microsoft ADO Extensions 2.1 for DDL and Security (ADOX)): (需 要 升 级 至 VB 6.0SP3) Dim adoConnectionX As New ADODB.Connection 'Ms SQL 7: 'adoConnectionX.Open "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Data Source=yuer;DataBase=NorthwindCS" 'Access 2000: adoConnectionX.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\DRptPlus\DRptPlus\Data\NWind2K.mdb;Persist Security Info=False"
Dim adoxCatalogX As New ADOX.Catalog Set adoxCatalogX.ActiveConnection = adoConnectionX
Dim TestTableName As String TestTableName = "产 品 "
Dim adoxTableX As ADOX.Table For Each adoxTableX In adoxCatalogX.Tables If adoxTableX.Name = TestTableName Then MsgBox "[" & TestTableName & "]表 已 存 在 !" Exit For End If Next 主 持 人 注 : 方 法 2也 可 以 这 样 : Private Sub Command1_Click() Dim cat As ADOX.Catalog Dim tbl As ADOX.Table
Set cat = New ADOX.Catalog Set cat.ActiveConnection = "Provider=Microsoft.Jet.OLEDB.3.51;" _ & "Data Source=C:\Program Files\Microsoft Visual Studio\VB98\Biblio.mdb" On Error Resume Next Set tbl = cat.Tables("MyTable")
If tbl Is Nothing Then MsgBox "MyTable doesn't exist" Else MsgBox "MyTable exists" Set tbl = Nothing End If
Dim adoConnectionX As New ADODB.Connection
Dim adoSchemaRecordsetX As New ADODB.Recordset
'Ms SQL 7:
'adoConnectionX.Open "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Data Source=yuer;DataBase=NorthwindCS"
'Access 2000:
adoConnectionX.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\DRptPlus\DRptPlus\Data\NWind2K.mdb;Persist Security Info=False"
Dim TestTableName As String
TestTableName = "产 品 "
Set adoSchemaRecordsetX = adoConnectionX.OpenSchema(adSchemaTables, Array(Empty, Empty, TestTableName, "Table"))
If Not adoSchemaRecordsetX.EOF Then
MsgBox "[" & TestTableName & "]表 已 存 在 !"
End If
方 法 2(引 用 Microsoft ADO Extensions 2.1 for DDL and Security (ADOX)):
(需 要 升 级 至 VB 6.0SP3)
Dim adoConnectionX As New ADODB.Connection
'Ms SQL 7:
'adoConnectionX.Open "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Data Source=yuer;DataBase=NorthwindCS"
'Access 2000:
adoConnectionX.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\DRptPlus\DRptPlus\Data\NWind2K.mdb;Persist Security Info=False"
Dim adoxCatalogX As New ADOX.Catalog
Set adoxCatalogX.ActiveConnection = adoConnectionX
Dim TestTableName As String
TestTableName = "产 品 "
Dim adoxTableX As ADOX.Table
For Each adoxTableX In adoxCatalogX.Tables
If adoxTableX.Name = TestTableName Then
MsgBox "[" & TestTableName & "]表 已 存 在 !"
Exit For
End If
Next
主 持 人 注 : 方 法 2也 可 以 这 样 :
Private Sub Command1_Click()
Dim cat As ADOX.Catalog
Dim tbl As ADOX.Table
Set cat = New ADOX.Catalog
Set cat.ActiveConnection = "Provider=Microsoft.Jet.OLEDB.3.51;" _
& "Data Source=C:\Program Files\Microsoft Visual Studio\VB98\Biblio.mdb"
On Error Resume Next
Set tbl = cat.Tables("MyTable")
If tbl Is Nothing Then
MsgBox "MyTable doesn't exist"
Else
MsgBox "MyTable exists"
Set tbl = Nothing
End If
Set cat = Nothing
Set con = Nothing
End Sub